公开(公告)号：US20170338480A1

公开(公告)日：2017-11-23

申请号：US15513056

申请日：2016-01-28

Applicant: LG Chem, Ltd.

Inventor： Kyoung Ho Kim ,  Chae Ah Kim ,  Jooyong Song ,  Hye Youn Lee ,  Hoe Jin Hah

IPC: H01M4/38 ,  H01M4/58 ,  H01M4/66 ,  H01M10/04 ,  H01M10/056 ,  C01B33/00 ,  C01D15/00 ,  H01M10/0525

Abstract: Disclosed are a secondary battery comprising a negative electrode composed of two or more negative electrode plates and a method of manufacturing the secondary battery, wherein each of the negative electrode plates includes a lithium by-product layer formed through pre-lithiation reaction on a negative electrode current collector coated with a negative electrode active material, wherein an inorganic substance layer is formed on a negative electrode tab that is extended from an end at one side of the negative electrode current collector and is composed of an active material-non-coated portion not coated with the negative electrode active material, and negative electrode tabs of the negative electrode plates are electrically connected with one negative electrode lead to form a negative electrode terminal.

公开(公告)号：US20180254522A1

公开(公告)日：2018-09-06

申请号：US15754174

申请日：2016-11-09

Applicant: LG Chem, Ltd.

Inventor： Se Mi Park ,  Yong Jun Kim ,  Chae Ah Kim ,  Seok Koo Kim ,  Seung Hyun Chung

IPC: H01M10/0565 ,  H01M10/04 ,  H01M10/0525 ,  B29C35/02 ,  H01M10/0585 ,  H01M4/1315

CPC classification number: H01M10/0565 ,  B29C35/00 ,  B29C35/02 ,  H01M4/1315 ,  H01M10/0404 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: The present invention provides a curing die for manufacturing a gel polymer electrolyte, and a method for manufacturing a gel polymer battery cell by using the same, the curing die comprising: a first die having a recessed part, which is formed inside a battery case and has a processing battery cell mounted therein and including an electrode assembly and a composition for forming the gel polymer electrolyte; and a second die coupled to the first die so as to seal the processing battery cell mounted in the recessed part.

公开(公告)号：US20180047972A1

公开(公告)日：2018-02-15

申请号：US15555858

申请日：2016-09-29

Applicant: LG Chem, Ltd.

Inventor： Seung Hyun Chung ,  Chae Ah Kim ,  Se Mi Park

IPC: H01M2/34 ,  H01M10/48 ,  H01M2/10

CPC classification number: H01M2/34 ,  H01M2/0237 ,  H01M2/0275 ,  H01M2/1016 ,  H01M2/345 ,  H01M10/425 ,  H01M10/48 ,  H01M10/482 ,  H01M2200/20 ,  H01M2220/20

Abstract: The present invention relates to a battery module that includes a probe for detecting expansion of a battery cell. More particularly, the present invention relates to a battery module including: two or more of rechargeable battery cells; a sensing probe provided at an external surface of at least one of the battery cells to sense a local expansion change of the battery cell and transmitting a signal; and a controller receiving the signal from the sensing probe, estimating an internal pressure of the battery cell from the received signal, and generating a warning signal to assure safety of the battery module when the estimated internal pressure exceeds a threshold pressure level.

公开(公告)号：US20170309970A1

公开(公告)日：2017-10-26

申请号：US15510070

申请日：2015-11-19

Applicant: LG Chem, Ltd.

Inventor： Kyoung Ho Kim ,  Je Young Kim ,  Hoe Jin Hah ,  Chae Ah Kim

IPC: H01M10/42 ,  H01C7/02 ,  H01M4/04

CPC classification number: H01M10/4235 ,  H01C7/02 ,  H01C7/027 ,  H01C17/06586 ,  H01G11/28 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M2200/106

Abstract: Disclosed herein is a method of manufacturing a secondary battery electrode containing a positive temperature coefficient (PTC) material, the method including (a) applying first slurry including a first mixture and a solvent mixed with each other to one surface of a planar current collector to generate a PTC material after drying, (b) applying second slurry including a second mixture, including an electrode active material, and a solvent mixed with each other to the first slurry applied to the current collector, which is in a non-dried state, and (c) drying the first slurry and the second slurry applied to the current collector.

公开(公告)号：US10608289B2

公开(公告)日：2020-03-31

申请号：US15510070

申请日：2015-11-19

Applicant: LG Chem, Ltd.

Inventor： Kyoung Ho Kim ,  Je Young Kim ,  Hoe Jin Hah ,  Chae Ah Kim

IPC: H01M4/13 ,  H01M10/42 ,  H01M4/62 ,  H01M4/139 ,  H01C17/065 ,  H01C7/02 ,  H01M4/04 ,  H01M10/052 ,  H01G11/28

Abstract: Disclosed herein is a method of manufacturing a secondary battery electrode containing a positive temperature coefficient (PTC) material, the method including (a) applying first slurry including a first mixture and a solvent mixed with each other to one surface of a planar current collector to generate a PTC material after drying, (b) applying second slurry including a second mixture, including an electrode active material, and a solvent mixed with each other to the first slurry applied to the current collector, which is in a non-dried state, and (c) drying the first slurry and the second slurry applied to the current collector.

公开(公告)号：US10476068B2

公开(公告)日：2019-11-12

申请号：US15555858

申请日：2016-09-29

Applicant: LG Chem, Ltd.

Inventor： Seung Hyun Chung ,  Chae Ah Kim ,  Se Mi Park

IPC: H01M2/34 ,  H01M10/48 ,  H01M2/10 ,  H01M2/02 ,  H01M10/42

Abstract: The present invention relates to a battery module that includes a probe for detecting expansion of a battery cell. More particularly, the present invention relates to a battery module including: two or more of rechargeable battery cells; a sensing probe provided at an external surface of at least one of the battery cells to sense a local expansion change of the battery cell and transmitting a signal; and a controller receiving the signal from the sensing probe, estimating an internal pressure of the battery cell from the received signal, and generating a warning signal to assure safety of the battery module when the estimated internal pressure exceeds a threshold pressure level.

公开(公告)号：US11063294B2

公开(公告)日：2021-07-13

申请号：US15754174

申请日：2016-11-09

Applicant: LG Chem, Ltd.

Inventor： Se Mi Park ,  Yong Jun Kim ,  Chae Ah Kim ,  Seok Koo Kim ,  Seung Hyun Chung

IPC: H01M10/0565 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0585 ,  B29C35/00 ,  B29C35/02 ,  H01M4/1315

Abstract: The present invention provides a curing die for manufacturing a gel polymer electrolyte, and a method for manufacturing a gel polymer battery cell by using the same, the curing die comprising: a first die having a recessed part, which is formed inside a battery case and has a processing battery cell mounted therein and including an electrode assembly and a composition for forming the gel polymer electrolyte; and a second die coupled to the first die so as to seal the processing battery cell mounted in the recessed part.

公开(公告)号：US10581073B2

公开(公告)日：2020-03-03

申请号：US15513056

申请日：2016-01-28

Applicant: LG Chem, Ltd.

Inventor： Kyoung Ho Kim ,  Chae Ah Kim ,  Jooyong Song ,  Hye Youn Lee ,  Hoe Jin Hah

IPC: H01M4/38 ,  H01M4/485 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/1391 ,  H01M4/66 ,  H01M4/04 ,  H01M10/04 ,  H01M4/58 ,  H01M4/583 ,  H01M4/36 ,  C01B33/00 ,  C01D15/00 ,  H01M10/0525 ,  H01M10/056

Abstract: Disclosed are a secondary battery comprising a negative electrode composed of two or more negative electrode plates and a method of manufacturing the secondary battery, wherein each of the negative electrode plates includes a lithium by-product layer formed through pre-lithiation reaction on a negative electrode current collector coated with a negative electrode active material, wherein an inorganic substance layer is formed on a negative electrode tab that is extended from an end at one side of the negative electrode current collector and is composed of an active material-non-coated portion not coated with the negative electrode active material, and negative electrode tabs of the negative electrode plates are electrically connected with one negative electrode lead to form a negative electrode terminal.

公开(公告)号：US20180254468A1

公开(公告)日：2018-09-06

申请号：US15753765

申请日：2016-09-12

Applicant: LG Chem, Ltd.

Inventor： Yong Jun Kim ,  Seok Koo Kim ,  Chae Ah Kim ,  Se Mi Park ,  Seung Hyun Chung

IPC: H01M2/26 ,  H01M10/0525 ,  H01M10/058

CPC classification number: H01M2/266 ,  H01M2/263 ,  H01M10/0525 ,  H01M10/058 ,  H01M2220/20 ,  Y02T10/7011

Abstract: The present invention provides a battery cell including: an electrode assembly including an electrode tab protruding toward at least one external side; a battery case including a receiving portion on which the electrode assembly is received; and an electrode lead connected to the electrode tab to be connected to an external device, wherein the electrode lead may include: a tab connecting portion electrically connected to the electrode tab; and a protruding extension protruding outside of the battery case in a state of extending from the tab connecting portion to be electrically connected to the external device, and the tab connecting portion may be formed so that a length of a width direction perpendicular to a protruding direction of the electrode tab may be relatively larger than that of the electrode tab.